Diamond holder attachment



Feb. 24, 1953 F. M. MoTTl-:T

DIAMOND HOLDER ATTACHMEN'1 2 SHEETS- SHEET 1 Filed April 5, 195o Odom ATTORNEYS INVENTOR ATTORNEYS 2 SHEETS--SHEET 2 F. M. MOTTET DIAMOND HOLDER ATTACHMENT hh I nani- 1 D/l t Feb. 24, 1953 Filed April 5 1950 l/f/f/xf/f//x'w/"fww/w Patented Feb. 24,I 1953 UNITED STATES PATENT OFFICE 3 Claims. 1 This invention relates to a diamond holder attachment, and, more particularly, to such a device adapted for holding a diamond utilized in cutting glass or the like.

A primary object of this invention is the provision `of an improved diamond holder adapted to be carried by the transverse supporting bar of the frame of a glass cutting apparatus, such, for

example, as that disclosed in my Patent No. 2,467,983, issued April 19, 1949, entitled Glass `Cutting Apparatus.

An additional object of the invention is the provision of such a device which may be readily adjusted transversely in the plane of the cutter carrying bar, and provided with pivotal means whereby the diamond cutter may be adjusted in a plane perpendicular to the plane of the transverse bar.

An additional important `object of the invention is the provision of improved means for so positioning a cutting diamond as accurately to align a cutting edge thereof with the glass to be cut and in the direction of the cut, pivotal adjusting means being provided to permit alignment of the edge in both vertical and horizontal plane.

An additional object of the invention is the provision of such a device provided with means for holding the cutter at a selected height relative to the cutter carrying bar.

A further object of the invention is the provision of readily releasable means whereby the diamond cutter may be applied to the glass or other material to be out on the cutting stroke and `removed therefrom on the return stroke.

Still another object oi the inventionl is,` the provision of a device of this character which is sturdy and durable in construction, reliable and eihcient in operation, and relatively simple and inexpensive to manufacture, assemble and utilize.

In the drawings:

Figure l is a top plan view partially broken away, and partially in section, of a glass cutting apparatus, showing the device of the instant invention as attached thereto.

Figure 2 is an enlarged sectional view taken Substantially along the line 2-2 of Figure 1 as viewed in the direction indicated .by the arrows.

Figure 3 is a sectional view taken substantially along the line 3-3 of Figure 2 as viewed in the direction indicated by the arrows.

Figure 4 is a, sectional view taken substantially along the line 4-4 of Figure 2 as viewed in the direction indicated by the` arrows.

Figure 5 is a top plan view of a modied form of apparatus shown as attached to 4the transverse bar of a cutting apparatus, only a fragment of the latter being shown.

Figure 6 is a sectional view taken substantially along the line I-Ei of Figure 5 as viewed in the direction indicated by the arrows.

Figure 7 is a sectional view taken substantially along the line 'l-'I of Figure 6 as viewed in the direction indicated by the arrows.

Figure 8 is an elevational view of the parts disclosed in Figure 7, shown in a dilferent position of adjustment, the relationship of the position of Figure 7 being indicated in dotted lines.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Referring now to the drawings in detail, there is -generally indicated at Ill a fragmentary porftion of a glass cutting apparatus of any desired type, although preferably of the type disclosed in my above mentioned Patent Number 2,467,983,

4the apparatus including a table II adapted to "which frame members extends a transverse bar I4 including a horizontal ange l 5, and a vertical liange I6. Bar I4 is adapted to be secured to frame members I3 in any desired manner as by means of bolts Il, and is adapted to be moved longitudinally of the sheet of glass I 2 in the manner described in my above mentioned patent, for cutting the glass.

The vertical flange I6 is provided with a plurality of apertures IB in horizontal alignment therealong through which a selected one of which is adapted to pass a bolt t9, for the support of the cutter holder of the instant invention generally indicated at 20. Bolt I9 also provides a pivot whereby the holder and hence its associate diamond may be adjusted in a transverse vertical plane projecting to align the cutting edge in its most efiicient cutting position. Cutter holder 20 is comprised of a block 2l having a threaded aperture 22 therein for the reception of bolt I9, and provided with a vertically extending bore or channel 23, and a cut-away portion 2li forming a recess.

A closure member generally indicated at 25 having a projecting portion 2E and a flange 21 of a dimension to correspond to the ,block 2| is adapted to seat within the recess 24, the flange 21 being secured to the block 2l as by means'of screws or bolts 28 extending through suitably aligned threaded apertures in the respective parts.

Adapted to seat within groove or channel 23 is a rectangular shank 30, rounded and threaded at its upper extremity as at 3|, the threaded upper extremity being adapted to have positioned thereon a nut 32 which acts as an adjustable abutment engageable with the block 2| for limiting the downward movement of the shank 30. The nut 32 has positioned thereabove a coiled spring 33 surrounding the shank 3|, the spring being held in abutting relation with nut 32 biasing the latter toward the top of block 20 by means of upper portion 34 of a U-shaped stirrup member 35, the latter being provided with transverse flanges 36, apertured toreceive screws 31 for securing the same to the top of the block 23. The top 34 of the stirrup is provided with a centrally positioned aperture 38 through which shank 3| may extend to a required degree when shank 30 is raised.

yThe lower portion of shank 38 below block 2! is provided with an enlarged portion 4B having a centrally positioned aperture therein through which extends a bolt 4|, secured in position as by means cfa nut 42 for securing the apertured vertical ange 43 of an L-shaped cutter holder member generally indicated at V44 thereto. Member 42 also includes a horizontal nange d5 having a vertical cylindrical bore therethrough for the reception of a diamond holder i6 having a head 41 and being provided with a diamond cutting point 48 adapted for the cutting of a groove or channel in glass sheet I2 in a known manner, the springv 33 serving to bias the diamond t8 downwardly towards the glass to be out.

Bolt 4| also provides a pivot whereby diamond 48 may be adjusted in a plane transverse to the cutter bar perpendicular to the plane of adjustment permitted by pivot bolt I9, to permit more.

accurate alignment of the cutting edge. Obviously longitudinal alignment of the cutting edge may be effected by rotation of holder 4'3 in its associated bore. Thus cutting of the glass in the most eiiicient manner, with a minimum of wear on the diamond is assured.

A set screw 49 extends transversely of horizontal iange 45 for holding the diamond cutter in desired angular relation and height relative to the glass l2.

A pair of regulating screws i! provided with heads 5| extend through the central portion of closure plate 25, suitable threaded bores being provided therein for this purpose, and abut the shank 3i) for regulating the play in the shank and its associated diamond holder relative toA block 20.

Obviously in the use of the device the cutter may be readily adjusted by means of the mechanism previously described to any desired height relative to the sheet of glass, and may be further suitably positioned transversely relative to the sheet, and, by virtue of pivots |53 and ill, the angularity of theV diamond cutter relative to the sheet may also be suitably varied to assume the Y most accurate alignment of the cutting edge' 4 to utilize the holder of the instant invention with other types of cutters not provided with automatic means for raising the diamond holder on the return stroke. Under such conditions it is desirable that means be provided for quickly and easily raising the cuttel` manually for the return stroke. A form of the invention embodying such means is disclosed in Figures 5 to 8, inclusive.

lin this modication of the invention a transverse cutter carrying bar 5t including a horizontal flange 6| 'and a vertical Iiange 62 is provided to which a cutter holder generally indicated at G3 is pivotally secured by means of a bolt 64 passed through any one of a series of suitable apertures 55 similar to the apertures I8 previously discussed. An elongated slot may be substituted for the series of apertures if desired. The holder 63 includes a block 6% grooved and recessed in a manner similar to the block 2|, and adapted to receive a forwardly extending portion 6l of a closure plate 63 having a ange 69 of a dimension similar` to that of the block 66, and secured thereto by means of suitable screws lil. Vertically movable within the central channel of block 63 is the shank 'H of a cutter holder member having an enlarged end 'i2 to which is pivotally secured by means of a bolt 73 the vertical iange ifi of an L-shaped cutter member generally indicated at l5 including a horizontal flange 13, having a vertical bore therethrough within which is positioned a diamond holder 'il having a head 'it and a diamond cutting tip 1S substantially identical to the previously discussed diamond cutter 43.

The upper extremity of shank 7| is provided with a round threaded portion 83 substantially longer than the previously discussed portion 3|, which extends upwardly through an aperture 82 in the top 83 of a U-shaped stirrup member 84 iianged as at 85 and secured to the top of block 68 and closure plate S8 as by means of screws 83. A nut 8l is adapted to engage the top oi' block 66 when diamond point 'H is in contact with the glass I2. A spring 3S surrounds the portion of threaded shank Si) between the top 83 of the stirrup and nut 8l normally biasing nut 8l into engagement with the top of block 3 Surrounding and secured to the portion of shank Si! above the top 83 of the stirrup is a cylindrical block or nut 9i) apertured as at 9| to receive inwardly extending projections 92 coinprising portions ofv cam surfaced members 93 integral with a U-shaped bracket @d at the lower extremities thereof, bracket S4 including a transverse top member $5 having a inger gripping portion 93.

The cam surfaced members 93 include arcuate surfaces El' adapted to ride on the top wall S3 of stirrup member 3d adjacent the edges thereof, the arrangement being such that when the parts are in the position shown in Figure 7, with the operating holder of the cam in substantially horizontal position, the longer axis of cam member 23 is in vertical alignment with the shank 8% in such manner as to raise nut tl, and consequently, shank 'll and diamond cutting point l5 upwardly, the point 'i9 being thus spaced above the glass i2, to a degree equal to the spacing of the nut 87 above the top of the block 63.

When parts are moved from the dotted line position of Figure 8 to the full line position therein indicated, the .shorter axis of the cam member 93 is juxtaposed to the top 83 of stirrup 84, permitting the nut 3'! to seat on top 33 of block S3, and diamond cutter point 19 to engage glass I2 for cutting the same, adjustment of the cutting edge of the diamond being eiected in the manner previously discussed.

Obviously the cutter point may be readily shifted vertically to place the same substantially instantaneously into or out of engagement with the surface of the material to be cut.

From the foregoing it will now be seen that there is herein provided a device which accomplishes all the objects of this invention, and others, including many advantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative, and not in a limiting sense.

I claim:

1. In combination with a glass cutting apparatus including a transverse bar longitudinally movable over a sheet of glass to be cut, a bloei: secured to said bar, a vertical channel in said block, a U-shaped member disposed over said channel and having an aperture aligned with the channel, a shank extending through said channel and said member, a. threaded upper extremity on said shank, a nut on said threaded extremity within said U-shaped member and engageable with the top oi said block, spring means biasing said nut toward the top of said block, a cutting device secured to the lower end of said shank, and means for moving said shank vertically in said channel to raise the cutting device to an inoperative position, said means comprising a movable cam-surfaced member carried by said shank and engaging the top of said U-shaned member.

2. In combination with a glass cutting apparatus including a transverse bar longitudinally movable over a sheet of glass to be cut, a block A secured to said bar, a vertical channel in said block, a shank extending through said channel, and adjustable abutment carried by said shank, an apertured U-shaped stirrup secured to the top of said block with said shank extending through the aperture therein, a spring positioned between the top of said stirrup and said abutment urging said abutment toward 'the top of said block, a

cutting device secured to the lower end of said shank said cutting device having a radially adjustable plate with a perpendicular member carried thereby, and cam means adjustably mounted on said shank and engageable with the top ci' said stirrup for raising said shank to an elevated position against the urge of said spring.

3. In glass cutting apparatus, a horizontal supporting bar, a block fixed to one side of said bar, said block having a vertical guide channel having a polygonal configuration in transverse section, an elongated polygonal shank slidable in said channel, a cutter, means securing said cutter on the lower end of said shank, an inverted U- shaped member having the bight thereof overlying said shank and formed with an opening aligning with the latter, laterally extending flanges carried by the lower ends of the vertical sides of said member, means securing said flanges to the upper side of said block, a threaded stud extending upwardly from said shank, a spring about said stud bearing at its upper end against the bight of said member', and a combined springtensioning nut and stop member threaded on said stud and bearing against the opposite end of' said spring, said nut normally contacting with the upper side of said block and limiting the downward movement of said shank.

FERNAND M. MOTTET.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 728,417 Sage May 19, 1903 1,301,950 Klages Apr. 29, 1919 1,764,966 Mazer June 17, 1930 1,876,612 Chiotti Sept. 13, 1932 2,202,751 Archer May 28, 1940 2,273,716 Louviaux et al. Feb. 17, 1942 2,435,154 Owen Jan. 27, 1948 2,480,168 Thompson Aug. 30, 1949 FOREIGN PATENTS Number Country Date '730,055 France May 3. 1932 

